<!DOCTYPE html>
<html xmlns:v-slot="http://www.w3.org/1999/XSL/Transform">

<head>
    <meta charset="utf-8">
    <link href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900" rel="stylesheet">
    <link href="https://cdn.jsdelivr.net/npm/@mdi/font@5.x/css/materialdesignicons.min.css" rel="stylesheet">
    <link href="https://cdn.jsdelivr.net/npm/vuetify@2.x/dist/vuetify.min.css" rel="stylesheet">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no, minimal-ui">
    <title>点餐系统管理员页面</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.x/dist/vue.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/vuetify@2.x/dist/vuetify.js"></script>
    <script src="js/jquery-2.1.0.min.js"></script>
</head>

<body>
    <div id="app">

        <!-- 左侧导航 -->
        <v-navigation-drawer v-model="drawer" app>
            <v-list dense v-show="!login.isLogin">
                <v-list-item link v-on:click="login.showLoginDialog=true">
                    <v-list-item-action>
                        <v-icon>mdi-login</v-icon>
                    </v-list-item-action>
                    <v-list-item-content>
                        <v-list-item-title>登陆</v-list-item-title>
                    </v-list-item-content>
                </v-list-item>
            </v-list>

            <!-- 左侧欢迎信息和导航 -->
            <v-list dense v-show="login.isLogin">
                <v-list-item link>
                    <v-list-item-action>
                        <v-icon>mdi-account</v-icon>
                    </v-list-item-action>
                    <v-list-item-content>
                        <v-list-item-title>{{login.inputUsername}} 管理员您好!</v-list-item-title>
                    </v-list-item-content>
                </v-list-item>
                <v-list-item link v-on:click="status = 'dishesPage'">
                    <v-list-item-action>
                        <v-icon>mdi-cart-outline</v-icon>
                    </v-list-item-action>
                    <v-list-item-content>
                        <v-list-item-title>查看菜品</v-list-item-title>
                    </v-list-item-content>
                </v-list-item>
                <v-list-item link v-on:click="showOrder">
                    <v-list-item-action>
                        <v-icon>mdi-cart-outline</v-icon>
                    </v-list-item-action>
                    <v-list-item-content>
                        <v-list-item-title>查看订单</v-list-item-title>
                    </v-list-item-content>
                </v-list-item>
                <v-list-item link v-on:click="logout">
                    <v-list-item-action>
                        <v-icon>mdi-logout</v-icon>
                    </v-list-item-action>
                    <v-list-item-content>
                        <v-list-item-title>退出登陆</v-list-item-title>
                    </v-list-item-content>
                </v-list-item>
            </v-list>
        </v-navigation-drawer>

        <v-app>
            <v-app-bar app color="indigo" dark>
                <v-app-bar-nav-icon @click.stop="drawer = !drawer"></v-app-bar-nav-icon>
                <v-toolbar-title>点餐系统</v-toolbar-title>
            </v-app-bar>
            <v-content>

                <!-- 菜品列表 -->
                <v-simple-table v-show="status == 'dishesPage' && login.isLogin">
                    <template v-slot:default>
                        <thead>
                            <tr>
                                <th class="text-left">菜名</th>
                                <th class="text-left">价格</th>
                                <th class="text-left">操作</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr v-for="dish in dishes">
                                <td>
                                    <v-icon>mdi-food</v-icon>
                                    {{dish.name}}
                                </td>
                                <td>
                                    <v-icon>mdi-cash</v-icon>
                                    {{dish.price}}
                                </td>
                                <td>
                                    <v-btn color="primary" v-on:click="del(dish.id)">删除</v-btn>
                                </td>
                            </tr>
                        </tbody>
                    </template>
                </v-simple-table>
                <v-row v-show="status == 'dishesPage' && login.isLogin">
                    <v-col :col="11">
                    </v-col>
                    <v-col :cols="2">
                        <v-btn color="primary" block v-on:click="showAddDish=true">新增菜品</v-btn>
                    </v-col>
                </v-row>

                <!-- 订单列表 -->
                <v-simple-table v-show="status == 'ordersPage' && login.isLogin">
                    <template v-slot:default>
                        <thead>
                            <tr>
                                <th class="text-left">序号</th>
                                <th class="text-left">用户</th>
                                <th class="text-left">状态</th>
                                <th class="text-left">时间</th>
                                <th class="text-left">详情</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr v-for="order in orders">
                                <td>{{order.id}}</td>
                                <td>{{order.username}}</td>
                                <td>
                                    <v-switch v-model="order.status" v-on:click="upStatus(order.id,order.status)"></v-switch>
                                </td>
                                <td>{{order.createtime}}</td>
                                <td>
                                    <v-btn color='primary' v-on:click="detail(order.id)">查看详情</v-btn>
                                </td>
                            </tr>
                        </tbody>
                    </template>
                </v-simple-table>
                <!-- 登陆 -->
                <v-row v-show="!login.isLogin">
                    <v-col>
                        <v-card class="pa-2 text-center">请先登陆!</v-card>
                    </v-col>
                </v-row>
                <v-row justify="center">
                    <v-dialog v-model="login.showLoginDialog" persistent max-width="400px">
                        <v-card>
                            <v-card-title>
                                <span class="headline">登陆</span>
                            </v-card-title>
                            <v-card-text>
                                <v-container>
                                    <v-row>
                                        <v-col cols="12" sm="12">
                                            <v-text-field label="用户名*" v-model="login.inputUsername" required>
                                            </v-text-field>
                                        </v-col>
                                    </v-row>
                                    <v-row>
                                        <v-col cols="12" sm="12">
                                            <v-text-field label="密码*" v-model="login.inputPassword" required>
                                            </v-text-field>
                                        </v-col>
                                    </v-row>
                                    <v-row>
                                        <v-col cols="12" sm="6">
                                            <v-btn color="primary" block v-on:click="doLogin">登陆</v-btn>
                                        </v-col>
                                        <v-col cols="12" sm="6">
                                            <v-btn color="primary" block v-on:click="login.showLoginDialog = false">取消
                                            </v-btn>
                                        </v-col>
                                    </v-row>
                                </v-container>
                            </v-card-text>
                        </v-card>
                    </v-dialog>
                </v-row>
                <!-- 订单详情-->
                <v-row justify="center">
                    <v-dialog v-model="showCurOrder" persistent max-width="600px">
                        <v-simple-table>
                            <template v-slot:default>
                                <thead>
                                    <tr>
                                        <th class="text-left">菜品</th>
                                        <th class="text-left">价格</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    <tr v-for="dish in curOrder">
                                        <td>{{dish.dish.name}}</td>
                                        <td>{{dish.dish.price}}</td>
                                    </tr>
                                    <tr>
                                        <td>{{totalPrice()}}</td>
                                        <td>
                                            <v-btn color="primary" v-on:click="showCurOrder = false">关闭</v-btn>
                                        </td>
                                    </tr>
                                </tbody>
                            </template>
                        </v-simple-table>
                    </v-dialog>
                </v-row>
                <!-- 新增菜品 -->
                <v-row justify="center">
                    <v-dialog v-model="showAddDish" persistent max-width="600px">
                        <v-card>
                            <v-card-title>
                                <span class="headline">新增菜品</span>
                            </v-card-title>
                            <v-card-text>
                                <v-container>
                                    <v-row>
                                        <v-col cols="12" sm="12">
                                            <v-text-field label="菜品名*" v-model="newDish.name" required></v-text-field>
                                        </v-col>
                                    </v-row>
                                    <v-row>
                                        <v-col cols="12" sm="12">
                                            <v-text-field label="价格(元)*" v-model="newDish.price" required>
                                            </v-text-field>
                                        </v-col>
                                    </v-row>
                                    <v-row>
                                        <v-col cols="12" sm="6">
                                            <v-btn color="primary" block v-on:click="addDish()">新增</v-btn>
                                        </v-col>
                                        <v-col cols="12" sm="6">
                                            <v-btn color="primary" block v-on:click="showAddDish = false">取消</v-btn>
                                        </v-col>
                                    </v-row>
                                </v-container>
                            </v-card-text>
                        </v-card>
                    </v-dialog>
                </v-row>
            </v-content>
        </v-app>
    </div>

    <script>
        let app = new Vue({
            el: '#app',
            data: {
                drawer: null,
                status: 'dishesPage', // 取值为: ordersPage, dishesPage
                // 登陆相关参数定义
                login: {
                    isLogin: false,
                    showLoginDialog: false,
                    inputUsername: "",
                    inputPassword: "",
                },
                user: {
                    name: 'test',
                    isAdmin: 0,
                },
                dishes: [],
                orders: [],
                // 辅助实现订单显示详情
                showCurOrder: false,
                curOrder: {},
                // 实现显示新增菜品窗口
                showAddDish: false,
                newDish: {
                    name: "",
                    price: 0,
                },
            },
            methods: {
                upStatus(id,status) {
                    status = status ? 1 : 0;
                    jQuery.getJSON("order/up",{"id":id,"status":status},function (data) {
                        if(data != null && data.data != null && data.data > 0) {
                            alert("状态修改成功！")
                        }else {
                            alert("抱歉：操作失败，请重试！");
                        }
                    })
                },
                logout() {
                    if(confirm("是否退出？")) {
                        jQuery.getJSON("/user/logout",{},function (data) {
                            if(data != null && data.data != null && data.data > 0) {
                                alert("退出成功！");
                                location.href = location.href;
                            }else {
                                alert("退出失败，请重试")
                            }
                        })
                    }
                },
                totalPrice(){
                    let  money = 0;
                    app.curOrder.forEach(order=>{
                        money += order.dish.price;
                    });
                    return money;
                },
                detail(oid) {
                    jQuery.getJSON("/detail/list",{"oid":oid},function (data) {
                        if(data != null && data.data != null) {
                            app.curOrder = data.data;
                            app.showCurOrder = true;
                        }
                    })
                },
                showOrder() {
                    jQuery.getJSON("order/alllist",{},function (data) {
                        if(data != null && data.data != null) {
                            app.orders = data.data;
                        }
                    })
                    app.status = 'ordersPage';
                },
                // 新增菜品
                addDish() {
                    if (confirm("是否确认提交？")) {
                        let name = app.newDish.name;
                        let price = app.newDish.price;
                        if (name == "") {
                            alert("请先输入菜品名称！");
                            return false;
                        }
                        if (price == "" || price == 0) {
                            alert("请先输入价格！");
                            return false;
                        }
                        jQuery.getJSON("/dish/add", {"name": name, "price": price},
                            function (result) {
                                if (result != null && result.data != null &&
                                    result.data > 0) {
                                    // 添加成功
                                    alert("恭喜：菜品添加成功！");
                                    location.href = location.href;
                                } else {
                                    alert("抱歉：操作失败请重试！");
                                }
                            });
                    }
                },
                del(id) {
                    if(confirm("是否删除？")) {
                        jQuery.getJSON("/dish/delete",{"id":id},function (data) {
                            if(data != null && data.data != null && data.data > 0) {
                                alert("删除成功！");
                                location.href = location.href;
                            }else {
                                alert("删除失败，请重试！")
                            }
                        })
                    }
                },
                isLogin(){
                    jQuery.getJSON("/user/islogin",{},function (data) {
                        if(data != null && data.data != null) {
                            app.login.inputUsername = data.data.username;
                            app.login.isLogin = true;
                            jQuery.getJSON("/dish/list",{},function (data) {
                                if(data != null && data.data != null) {
                                    app.dishes = data.data;
                                }
                            })
                        }
                    })
                },
                // 登录方法
                doLogin(){
                    let username = app.login.inputUsername;
                    let password = app.login.inputPassword;
                    //非空校验
                    if(username == "") {
                        alert("请先输入用户名！");
                        return false;
                    }
                    if(password == "") {
                        alert("请先输入密码！");
                        return false;
                    }
                    jQuery.getJSON("/user/login",{"username":username,"password":password},function (data) {
                        if(data != null && data.data != null && data.data.id > 0) {
                            if(data.data.isadmin == 1) {
                                alert("登陆成功！");
                                // 隐藏左侧未登录之前的导航，显示欢迎信息
                                app.login.isLogin = true;
                                // 隐藏登录窗体
                                app.login.showLoginDialog = false;
                                jQuery.getJSON("/dish/list",{},function (data) {
                                    if(data != null && data.data != null) {
                                        app.dishes = data.data;
                                    }
                                })
                            }else {
                                alert("非法操作，权限不足！")
                            }
                        }else {
                            // 用户名或密码错误，请重新输入
                            alert("用户名或密码错误，请重新输入!");
                        }
                    })
                },
            },
            computed: {},
            vuetify: new Vuetify(),
        });
        app.isLogin();
    </script>
</body>

</html>